When we purchased our pool, it came with a "Simple Salt" system, which requires some weekly additives. The initial fill was water from our town's fire department. We got it in late July of last year and closed it down in September. Last year was great, and so was this year for the most part. Recently though I've noticed some yellow algae building around the steps. After multi shocks, and sweepings, the algae is still there. Previously only testing for FC and PH, I decided (after reading this forum) to buy a test kit that tests more. Here is our latest test:
Obviously CYA is through the roof, and PH is very high. I've read that my best option may be to partially drain the pool to get the CYA down. We're almost to September, and weather is in the low 80's. Do I drain and refill now, so I can balance out before winter? Or will winter kill the algae and I can worry about draining and refilling in the spring?
Any opinions are greatly appreciated!!!